GPU Comparison
RADEON
AMD Radeon RX 550
CORE STATE
Lexa
VRAM
2 GB
CLOCK SPEED
1183 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2017
VS
RADEON
Radeon RX 580 2048SP
CORE STATE
Polaris 20
VRAM
4 GB
CLOCK SPEED
1284 MHz
TDP
150 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 550
RX 580 2048SP
Core Specs
Shading Units
512
2,048
+300.0%
Shaders
512
2,048
+300.0%
TMUs
32
128
+300.0%
ROPs
16
32
+100.0%
Compute Units
8
32
+300.0%
Clocks
Base Clock
1100 MHz
1168 MHz
Boost Clock
1183 MHz
1284 MHz
Memory Clock
1750 MHz
7 Gbps effective
1750 MHz
7 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
256 bit
Bandwidth
112.0 GB/s
224.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
18.93 GPixel/s
41.09 GPixel/s
Texture Rate
37.86 GTexel/s
164.4 GTexel/s
FP32 (TFLOPS)
1,211.4 GFLOPS
5.259 TFLOPS
FP64 (TFLOPS)
75.71 GFLOPS (1:16)
328.7 GFLOPS (1:16)
FP16 (TFLOPS)
1,211.4 GFLOPS (1:1)
5.259 TFLOPS (1:1)
Power
TDP
50 W
150 W
TDP (W)
50
150
+200.0%
Suggested PSU
250 W
450 W
Power Connectors
None
1x 8-pin
Architecture
Architecture
GCN 4.0
GCN 4.0
GPU Name
Lexa
Polaris 20
Generation
Polaris
(RX 500)
Polaris
(RX 500)
Process Size
14 nm
14 nm
Transistors
2,200 million
5,700 million
Die Size
103 mm²
232 mm²
Foundry
GlobalFoundries
GlobalFoundries
Density
21.4M / mm²
24.6M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.3
OpenCL
2.1
2.1
Shader Model
6.7
6.7
Physical
Slot Width
Dual-slot
Dual-slot
Length
145 mm
5.7 inches
241 mm
9.5 inches
Outputs
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
1x DVI1x HDMI 2.0b3x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Launch Price
79 USD
—
Production
End-of-life
End-of-life
Predecessor
Arctic Islands
Arctic Islands
Successor
Vega
Vega